Staffing device for mill-burrs



110 Model.)

J. MOORE. Staffing Device for Mill Burrs.

No, 233,427. Patented Oct. 19, 1880.

UNITED STATES PATENT ()FFICE.

JESSE MOORE, OF MUNOIE, INDIANA.

STAFFING DEVICE FOR MlLL-BURRS.

SPECIFICATION forming part of Letters Patent No. 233,427, dated October 19, 1880. Application filed September 7, 1880. (N model.)

have invented a new and useful Improvement in Staffing Devices for Mill-Burrs, of which the following is a specification.

My invention relates to improvements in stafling devices for mill-burrs and the objects IO of my invention and improvements are, first,

to provide a staffing device for painting the face of a mill-burr for dressing them to an even surface; second, to have the staffing device to rest on the burr on three or five studs [5 or legs; third, to have the staffing-plate to raise or lower by means of screw-plate at the top of the center staff; fourth, to screw the staff-plate up tight against the upper plate to prevent it from springing or warping. I attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a side view of my invention as it stands upon a mill-burr, with the staffingplate raised. Fig. 2 shows my device when the staffing-plate is lowered on the face of the burr. Fig. 3 shows the top side of the staffing-plate with center shaft. Fig. 4 is an edge view of the staffing-plate, showing the three legs of the center staff.

Similar lettersrefer to similar parts throughout the several views.

a is the mill-burr, on which the legs or studs rest, (when staffing.) b is the staffing-plate.

c is the top plate, to which are attached the 5 studs 1'. e is the center shaft, which is split at the lower end into three prongs, m. The said prongs m are fastened to the top side of the staffing-plate b. The upper end of the said shaft 0 has threads cut on it, on which the screw-plate f is placed for the purpose of raising or lowering the staffing-plate b.

Around the top part of the upper plate and shaft 0 is placed a short pipe, 0. The said pipe 0 has a slot cut lengthwise in it, in which the pin 9 works. At the upper end of the said slot 12 is a notch for catching and holding the pin 9 when the staffing-plate b is raised, as shown at Fig. 1.

d is the lever which is fastened to plate I), and works in a slot in plate a. The said lever d is used for moving the plate b when it is upon the face of the burr a.

s are the slots through which the studs i work.

In staffing a burr the staffing device is placed upon the burr, as shown at a in Fig. l, and rests on studs The under side of the staffing-plate b is painted, so when lowered on the stone (1, as shown at Fig. 2, the paint touches all of the high parts or bumps that may be on the burr. Then by removing the device the stone is dressed off at the painted points, and the burr is then to a perfect face.

Havingthus described my invention, I claim as new and desire to secure by Letters Patcut- The three-pronged shaft 6, having a pin, 9, and a scre\v-plate,f, at its top, the short pipe 0, having slot n, the crank d, fastened to plate I), the studs i, and the slots 8, substantially as shown and described.

JESSE MOORE.

Witnesses:

CHARLES LITTLEFIELD, IRA DIcK. 

